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What is 351(k) biologics license application BLA
13 Sep 2017

What is 351(k) biologics license application (BLA)?

351(k) biologics license application is the biosimilar application process in USFDA. Manufacturers must submit 351(k) biologics license application (BLA) to have a product reviewed as a biosimilar or interchangeable.

Details which need to be submitted under 351k BLA

  • Analytical studies demonstrating that the biological product is “highly similar” to the reference product notwithstanding minor differences in clinically inactive components;
  • Animal studies (including the assessment of toxicity); and
  • A clinical study or studies (including the assessment of immunogenicity and pharmacokinetics (PK) or pharmacodynamics (PD)) sufficient to demonstrate safety, purity, and potency in 1 or more appropriate conditions of use for which the reference product is licensed and for which licensure is sought for the biosimilar product.

FDA may determine, in its discretion, that an element described above is unnecessary in a 351(k) BLA.

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